particles
nounUK /ˈpɑːtɪkəlz/
US /ˈpɑːrtɪkəlz/
Particles are very tiny pieces of something.
Dust particles floated in the sunlight.
OTHER MEANINGS
2. In grammar, small words like 'up' or 'out' that work with verbs.
In 'look up', the word 'up' is a particle.
3. In physics, tiny parts that make up atoms.
Protons and electrons are subatomic particles.
4. Very small amounts of something.
There was not a particle of truth in his story.